51450559 has 4 divisors (see below), whose sum is σ = 51467416. Its totient is φ = 51433704.

The previous prime is 51450557. The next prime is 51450569. The reversal of 51450559 is 95505415.

51450559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51450559 - 2¹ = 51450557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51450557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2424 + ... + 10429.

It is an arithmetic number, because the mean of its divisors is an integer number (12866854).

Almost surely, 2^51450559 is an apocalyptic number.

51450559 is a deficient number, since it is larger than the sum of its proper divisors (16857).

51450559 is a wasteful number, since it uses less digits than its factorization.

51450559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16856.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 51450559 is about 7172.9045023616. The cubic root of 51450559 is about 371.9318462071.

The spelling of 51450559 in words is "fifty-one million, four hundred fifty thousand, five hundred fifty-nine".